High-precision cutting device for polyimide film

Abstract

The utility model discloses a high-precision cutting device for polyimide film, which relates to the technical field of polyimide film processing and comprises a cutting platform, a placing frame is arranged on the upper surface of the rear end of the cutting platform, a cutting frame is arranged on the upper surface of the front end of the cutting platform, and a material collecting plate is arranged on the surface of the front end of the cutting platform. Compared with an existing high-precision cutting device for a common polyimide film, the high-precision cutting device for the polyimide film has the advantages that a sliding plate can be driven to slide along a limiting sliding groove in a spiral transmission mode to be folded inwards through a bidirectional spiral transmission rod, so that the lower surface of the sliding plate is attached to the outer surface of the film; according to the film limiting device, the film can be limited in the moving process, meanwhile, tensile deformation is reduced, deviation and deformation of the film in the moving process are avoided, the cutting precision of a cutting knife is improved, and the cutting qualification rate is increased; and through the arrangement of a rubber pad, the friction resistance of the thin film can be increased when the thin film is cut by the cutting knife, and the cutting stability is improved.

Description

Technical Field

[0001] This utility model relates to the field of polyimide film processing technology, specifically a high-precision cutting device for polyimide films. Background Technology

[0002] Thermosetting polyimides possess excellent thermal stability, chemical resistance, and mechanical properties, and are typically orange-yellow in color. Graphite or glass fiber reinforced polyimides can achieve a flexural strength of 345 MPa and a flexural modulus of 20 GPa. Thermosetting polyimides exhibit very low creep and high tensile strength. Polyimides have a wide operating temperature range, from below -100 degrees Celsius to 200-300 degrees Celsius, making them particularly suitable as substrates for flexible printed circuit boards and as insulation materials for various high-temperature electrical appliances.

[0003] After processing, polyimide film needs to be cut into pieces using a cutting device. However, the cutting tools are usually fixed on a mounting frame, and the position of the cutting tools is adjusted by manually pushing the mounting frame, resulting in poor precision of the parts to be cut.

[0004] For example, patent application number 202322931613.4 discloses a high-precision cutting device for polyimide film, and utility model discloses a high-precision cutting device for polyimide film, which relates to the field of polyimide film processing technology. In order to solve the problem that existing polyimide films need to be divided by a cutting device after processing, but the cutting tools are usually fixed on the mounting frame, and the position of the cutting tools is adjusted by manually pushing the mounting frame, resulting in poor accuracy of the cutting part, this high-precision cutting device for polyimide film cannot limit the movement direction of the film when cutting the film. If the film is not limited, it may be deviated during the cutting process, affecting the cutting accuracy.

[0005] Therefore, in view of this, we studied and improved the existing structure to address its shortcomings, and proposed a high-precision cutting device for polyimide films. Utility Model Content

[0006] The purpose of this invention is to provide a high-precision cutting device for polyimide films to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-precision cutting device for polyimide film, comprising a cutting platform, a placement rack on the upper rear surface of the cutting platform, a cutting frame on the upper front surface of the cutting platform, a material collection plate on the upper front surface of the cutting platform, a cutting blade mounted on the inner front surface of the cutting frame, a limiting groove formed on the upper rear surface of the cutting frame, a servo controller on one side surface of the cutting frame, support blocks on both ends of the limiting groove, a bidirectional helical transmission rod rotatably mounted on the inner surface of the support blocks, and a rotating head at the end of the bidirectional helical transmission rod.

[0008] Preferably, a sliding plate is spirally mounted on the outer surface of the bidirectional helical transmission rod, and a rubber pad is provided on the lower inner surface of the sliding plate, and the sliding plate and the inner surface of the limiting groove are configured to slide together.

[0009] Preferably, a support frame is provided at the rear of the cutting frame, and a guide groove is provided on the inner surface of the support frame.

[0010] Preferably, a roller frame is slidably mounted on the inner surface of the guide groove, and an upper rotating roller is rotatably mounted on the inner surface of the roller frame.

[0011] Preferably, a lower rotating roller is provided below the upper rotating roller, and the lower rotating roller is mounted on the surface of the cutting platform, and a servo motor is provided at the end of the lower rotating roller.

[0012] Preferably, the upper surface of the roller frame is provided with a sliding pressure bar, and the sliding pressure bar and the support frame are configured to be slidably connected.

[0013] Preferably, the upper outer surface of the support frame is provided with a threaded groove, and a rotating sleeve is spirally installed on the outer surface of the threaded groove.

[0014] Preferably, the lower surface of the rotating sleeve is provided with a compression spring, and the compression spring is fixedly connected to the upper surface of the support frame.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model, through the arrangement of a cutting platform, a placement rack, a cutting frame, a servo controller, a cutting blade, a collecting plate, a limiting groove, a support block, a rotating head, a bidirectional spiral drive rod, a sliding plate, and a rubber pad, utilizes the bidirectional spiral drive rod to drive the sliding plate along the limiting groove to retract inwards, allowing the lower surface of the sliding plate to adhere to the outer surface of the film. This limits the movement of the film, reduces tensile deformation, prevents offset and deformation during movement, improves the cutting accuracy of the cutting blade, and increases the yield rate. The rubber pad increases the frictional resistance of the film during cutting, making the cutting process more stable and less prone to loosening, thus improving the stability of the cutting process.

[0017] 2. This utility model, through the arrangement of a lower rotating roller, a servo motor, a support frame, a guide groove, a roller frame, an upper rotating roller, a sliding pressure rod, a threaded groove, a rotating sleeve, and a compression spring, applies downward pressure to the upper rotating roller to flatten the film, preventing wrinkles on the film surface and affecting subsequent cutting accuracy. The servo motor, while flattening the film, drives the lower rotating roller to rotate, causing the film to undergo intermittent, stable displacement, allowing the cutting blade to cut the film to the specified length. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the sliding plate of this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the cutting platform of this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the sliding pressure rod of this utility model.

[0022] In the diagram: 1. Cutting platform; 101. Placement rack; 102. Cutting rack; 103. Servo controller; 104. Cutting blade; 105. Material collection plate; 2. Limiting slide; 201. Support block; 202. Rotating head; 203. Bidirectional spiral drive rod; 204. Sliding plate; 205. Rubber pad; 3. Lower rotating roller; 301. Servo motor; 302. Support frame; 303. Guide slide; 304. Roller frame; 305. Upper rotating roller; 306. Sliding pressure rod; 307. Threaded groove; 308. Rotating sleeve; 309. Compression spring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1-2 As shown, a high-precision cutting device for polyimide film includes a cutting platform 1, a placement rack 101 is provided on the upper rear surface of the cutting platform 1, a cutting rack 102 is provided on the upper front surface of the cutting platform 1, and a material collection plate 105 is provided on the front front surface of the cutting platform 1. This technical solution allows for the placement of polyimide film rolls through the placement rack 101.

[0025] Furthermore, a cutting blade 104 is installed on the inner surface of the front end of the cutting frame 102, and a limit groove 2 is opened on the upper surface of the rear end of the cutting frame 102. A servo controller 103 is provided on one side surface of the cutting frame 102. With this technical solution, the film can be cut with high precision by the control of the servo controller 103 through the setting of the cutting blade 104.

[0026] Furthermore, support blocks 201 are provided on both ends of the limiting slide groove 2, and a bidirectional spiral drive rod 203 is rotatably mounted on the inner surface of the support block 201. A rotating head 202 is provided at the end of the bidirectional spiral drive rod 203. With this technical solution, the bidirectional spiral drive rod 203 can drive the sliding plate 204 to slide along the limiting slide groove 2 and retract inward through spiral transmission, so that the lower surface of the sliding plate 204 is in contact with the outer surface of the film. This can limit the film during movement and reduce tensile deformation, prevent it from shifting and deforming during movement, improve the accuracy of the cutting blade 104 during cutting, and increase the pass rate of cutting.

[0027] Furthermore, a sliding plate 204 is spirally mounted on the outer surface of the bidirectional spiral drive rod 203, and a rubber pad 205 is provided on the lower inner surface of the sliding plate 204. The sliding plate 204 and the inner surface of the limiting groove 2 are configured to slide together. This technical solution, by setting the rubber pad 205, can increase the frictional resistance of the film when the cutting blade 104 cuts the film, making the cutting more stable and less prone to loosening, and improving the stability of the cutting.

[0028] like Figures 3-4As shown, a support frame 302 is provided behind the cutting frame 102, and a guide groove 303 is formed on the inner surface of the support frame 302. A roller frame 304 is slidably installed on the inner surface of the guide groove 303, and an upper rotating roller 305 is rotatably installed on the inner surface of the roller frame 304. This technical solution...

[0029] Furthermore, a lower rotating roller 3 is provided below the upper rotating roller 305, and the lower rotating roller 3 is mounted on the surface of the cutting platform 1. A servo motor 301 is provided at the end of the lower rotating roller 3. With this technical solution, the film can be flattened by the servo motor 301, and the film can be driven to make intermittent stable displacement by driving the lower rotating roller 3 to rotate, so that the cutting blade 104 can cut the film to a specified length.

[0030] Furthermore, a sliding pressure bar 306 is provided on the upper surface of the roller frame 304, and the sliding pressure bar 306 and the support frame 302 are connected by a sliding through connection. With this technical solution, the sliding pressure bar 306 can apply downward pressure to the upper rotating roller 305 to flatten the passing film, so as to avoid wrinkles on the surface of the film and affect the subsequent cutting accuracy.

[0031] Furthermore, the upper outer surface of the support frame 302 is provided with a threaded groove 307, and a rotating sleeve 308 is spirally installed on the outer surface of the threaded groove 307. A compression spring 309 is provided on the lower surface of the rotating sleeve 308, and the compression spring 309 is fixedly connected to the upper surface of the support frame 302. In this technical solution, by setting the threaded groove 307, the compression spring 309 can be compressed by driving the rotating sleeve 308 to slide downward, thereby adjusting the elastic pressure of the compression spring 309 and making the downward pressure of the upper rotating roller 305 more reasonable, avoiding excessive downward pressure and causing elastic deformation of the film.

[0032] Working Principle: When using this high-precision polyimide film cutting device, the operation process follows a precise and systematic design. First, the polyimide film roll is smoothly placed into the receiving space of the placement frame 101. Then, the film is pulled and unfolded, allowing it to smoothly wrap around the outer surface of the upper rotating roller 305. Next, based on the film thickness and material characteristics, the rotating sleeve 308 is manually rotated to achieve stable vertical displacement along the threaded groove 307. During this process, the rotating sleeve 308 applies downward pressure to the compression spring 309, thereby precisely adjusting the downward pressure to ensure that the film remains flat during transport while avoiding damage or deformation of the film surface due to excessive pressure.

[0033] After pressure adjustment, the servo controller 103 sends a command to the servo motor 301, driving the lower rotating roller 3 to perform intermittent rotation. Under the traction of the lower rotating roller 3, the film moves forward at a constant speed and smoothly enters the cutting frame 102. At this time, the rotating head 202 drives the bidirectional spiral transmission rod 203 to rotate synchronously, thereby driving the sliding plate 204 mounted on its outer surface to slide along the inner wall of the limiting groove 2. When the rubber pad 205 on the lower surface of the sliding plate 204 is tightly attached to the film surface, the film is omnidirectionally limited and fixed, effectively preventing displacement deviation during the cutting process.

[0034] After the limiting process is completed, the cutting blade 104 starts according to the preset program, completing the cutting operation with a precise cutting trajectory. The cut film then falls into the collecting plate 105 for automated collection. The entire process ensures cutting accuracy while significantly improving production efficiency and operational safety. This is the working principle of the high-precision cutting device for polyimide film.

Claims

1. A high-precision cutting device for polyimide films, comprising a cutting platform (1), characterized in that, The upper rear surface of the cutting platform (1) is provided with a placement rack (101), and the upper front surface of the cutting platform (1) is provided with a cutting rack (102). The upper front surface of the cutting platform (1) is provided with a material collection plate (105). The inner front surface of the cutting rack (102) is equipped with a cutting blade (104). The upper rear surface of the cutting rack (102) is provided with a limiting groove (2). The cutting rack (102) is provided with a servo controller (103) on one side surface. The two ends of the limiting groove (2) are provided with support blocks (201). The inner surface of the support block (201) is rotatably mounted with a bidirectional spiral drive rod (203). The end of the bidirectional spiral drive rod (203) is provided with a rotating head (202).

2. The high-precision cutting device for polyimide film according to claim 1, characterized in that, The outer surface of the bidirectional helical transmission rod (203) is helically fitted with a sliding plate (204), and a rubber pad (205) is provided on the inner surface of the lower end of the sliding plate (204). The sliding plate (204) and the inner surface of the limiting groove (2) are configured to slide together.

3. The high-precision cutting device for polyimide film according to claim 1, characterized in that, A support frame (302) is provided behind the cutting frame (102), and a guide groove (303) is provided on the inner surface of the support frame (302).

4. The high-precision cutting device for polyimide film according to claim 3, characterized in that, The inner surface of the guide groove (303) is slidably mounted with a roller frame (304), and the inner surface of the roller frame (304) is rotatably mounted with an upper rotating roller (305).

5. The high-precision cutting device for polyimide film according to claim 4, characterized in that, A lower rotating roller (3) is provided below the upper rotating roller (305), and the lower rotating roller (3) is installed on the surface of the cutting platform (1), and a servo motor (301) is provided at the end of the lower rotating roller (3).

6. The high-precision cutting device for polyimide film according to claim 4, characterized in that, The upper surface of the roller frame (304) is provided with a sliding pressure rod (306), and the sliding pressure rod (306) and the support frame (302) are configured to be slidably connected.

7. The high-precision cutting device for polyimide film according to claim 3, characterized in that, The upper outer surface of the support frame (302) is provided with a threaded groove (307), and a rotating sleeve (308) is spirally installed on the outer surface of the threaded groove (307).

8. The high-precision cutting device for polyimide film according to claim 7, characterized in that, The lower surface of the rotating sleeve (308) is provided with a compression spring (309), and the compression spring (309) is fixedly connected to the upper surface of the support frame (302).

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